There are total 3 hours or 180 minutes from 7pm to 10pm. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 3AM to 12PM | 1PM to 9PM | 12PM to 6PM |
| 9PM to 12PM | 9AM to 6PM | 6PM to 8AM |
| 3AM to 12PM | 12PM to 4AM | 4AM to 9AM |
| 3AM to 12AM | 6PM to 1AM | 6AM to 3PM |
| 2AM to 11AM | 6AM to 5PM | 3AM to 9AM |
| 6PM to 7AM | 1PM to 7AM | 7AM to 4AM |
